The game chromatic number of trees and forests

Autor: Dunn, Charles, Larsen, Victor, Lindke, Kira, Retter, Troy, Toci, Dustin
Rok vydání: 2014
Předmět:
Druh dokumentu: Working Paper
Popis: While the game chromatic number of a forest is known to be at most 4, no simple criteria are known for determining the game chromatic number of a forest. We first state necessary and sufficient conditions for forests with game chromatic number 2 and then investigate the differences between forests with game chromatic number 3 and 4. In doing so, we present a minimal example of a forest with game chromatic number 4, criteria for determining the game chromatic number of a forest without vertices of degree 3, and an example of a forest with maximum degree 3 and game chromatic number 4.
Comment: 18 pages, 15 figures, submitted
Databáze: arXiv